Addition Of Fugitive Material Patents (Class 419/36)
  • Patent number: 11980941
    Abstract: A system for building a three dimensional green compact comprising a printing station configured to print a mask pattern on a building surface, wherein the mask pattern is formed of solidifiable material; a powder delivery station configured to apply a layer of powder material on the mask pattern; a die compaction station for compacting the layer formed by the powder material and the mask pattern; and a stage configured to repeatedly advance a building tray to each of the printing station, the powder delivery station and the die compaction station to build a plurality of layers that together form the three dimensional green compact.
    Type: Grant
    Filed: May 10, 2023
    Date of Patent: May 14, 2024
    Assignee: Stratasys Ltd.
    Inventors: Yehoshua Sheinman, Shai Hirsch, Almog Shahar, Uri Grach, Kirill Tanhilevich
  • Patent number: 11951546
    Abstract: A manufacturing method of oxidation resistant alloy includes: producing a first formed member by applying compression forming to metal powder; and applying compression forming to the first formed member in a state in which the first formed member is covered with alloy powder different from the metal powder. The oxidation resistance of the major constituent of the alloy powder is higher than the oxidation resistance of the major constituent of the metal powder. Producing the first formed member may include applying the compression forming to the metal powder without melting the metal powder. Applying the compression forming to the first formed member may include: producing a second formed member by applying compression forming to the alloy powder without melting the alloy powder; and sintering the second formed member.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: April 9, 2024
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventor: Shintaro Sobu
  • Patent number: 11920225
    Abstract: Elements formed from magnetic materials and their methods of manufacture are presented. Magnetic materials include a magnetic alloy material, such as, for example, an Fe-Co alloy material (e.g., the Fe-Co-V alloy Hiperco-50(R)). The magnetic alloy materials may comprise a powdered material suitable for use in additive manufacturing techniques, such as, for example direct energy deposition or laser powder bed fusion. Manufacturing techniques include the use of variable deposition time and energy to control the magnetic and structural properties of the materials by altering the microstructure and residual stresses within the material. Manufacturing techniques also include post deposition processing, such as, for example, machining and heat treating. Heat treating may include a multi-step process during which the material is heated, held and then cooled in a series of controlled steps such that a specific history of stored internal energy is created within the material.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: March 5, 2024
    Assignee: California Institute of Technology
    Inventors: Samad A. Firdosy, Robert P. Dillon, Ryan W. Conversano, John Paul C. Borgonia, Andrew A. Shapiro-Scharlotta, Bryan W. McEnerney, Adam Herrmann
  • Patent number: 11881351
    Abstract: The disclosure provides a preparation method, which comprises: providing a moulding die for a ring-shaped sintered Nd—Fe—B magnet; placing a Nd—Fe—B magnetic powder into the mould cavity of the moulding die in a loosely packed state, the loosely packed height of the Nd—Fe—B magnetic powder is L; placing a flexible cylindrical core into the loosely packed Nd—Fe—B magnetic powder at a L/2 position, wherein an axial direction of the flexible cylindrical core is horizontal and parallel to the direction of a magnetic field in the mould cavity; applying a vertical pressure to the Nd—Fe—B magnetic powder to obtain a ring-shaped green block assembly with the flexible cylindrical core embedded; after encapsulating and isolating the ring-shaped green block assembly, applying an isostatic pressure to the ring-shaped green block assembly; sintering the ring-shaped green block assembly to obtain a ring-shaped sintered blank; thermally aging, grinding and slicing the ring-shaped sintered blank.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: January 23, 2024
    Assignee: Yantai Shougang Magnetic Materials Inc
    Inventors: Zhanji Dong, Zhongjie Peng
  • Patent number: 11872747
    Abstract: Described herein are methods and systems for printing a three-dimensional object. In an example, a method for printing a three-dimensional object can comprise: (i) a metallic build material being applied; (ii) a binder fluid being applied on at least a portion of the metallic build material; (iii) the selectively applied binder fluid can be flash fused to bind the metallic build material and the selectively applied binder fluid by application of an energy flux having an energy density of from about 0.5 J/cm2 to about 20 J/cm2 for less than about 1 second. In the example, (i), (ii), and (iii) can be repeated at least one time to form the three-dimensional object. The binder fluid can comprise a liquid vehicle and polymer particles dispersed in the liquid vehicle.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: January 16, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Krzysztof Nauka, David Michael Ingle
  • Patent number: 11845699
    Abstract: Composite materials and methods of manufacturing composite materials, such as for use in aerospace parts, are described herein. A representative method for manufacturing a coated composite material structure includes applying a plurality of material layers to a preform structure. The plurality of material layers can include at least one first material layer (including a first matrix precursor), and at least one second material layer (including a second matrix precursor and a coating precursor). The method can also include infusing the preform structure with the first and second matrix precursors and the coating precursor from the plurality of material layers. The method can further include heating the infused preform structure to concurrently form a composite material structure and a coating on at least a portion of the composite material structure.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: December 19, 2023
    Assignee: Blue Origin, LLC
    Inventors: Arash Ghabchi, Brendan Boyer
  • Patent number: 11840781
    Abstract: A system for thermally bonding nonwoven fibers of assemblages of nonwoven fibers loosely held together may include a processing duct including an inlet end, an outlet end, and an intermediate portion extending between the inlet end and the outlet end. The system also may include one or more heat inlets located in the intermediate portion and configured to facilitate introduction of heat and air flow into the intermediate portion. The system further may include an inlet air feed at the inlet end and configured to separate the assemblages upon entry into the inlet end and propel the assemblages into the intermediate portion. The system also may include one or more heating devices configured to heat the assemblages as the assemblages are conveyed toward the outlet end to form processed assemblages, each of the processed assemblages including at least some nonwoven fibers adhered to one another.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: December 12, 2023
    Inventors: Kirk S. Morris, Dylan M. Morris
  • Patent number: 11820070
    Abstract: An additive manufacturing technique includes depositing, via a filament delivery device, a filament onto a surface of a substrate. The filament includes a binder and a high entropy alloy powder. The technique also includes sacrificing the binder to form a preform and sintering the preform to form a component.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: November 21, 2023
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: Quinlan Yee Shuck, Scott Nelson, Raymond Ruiwen Xu, Brandon David Ribic, Matthew R. Gold
  • Patent number: 11766718
    Abstract: A compound sintering furnace with managed contamination for debinding and sintering parts. An inner insulation layer is disposed within an outer insulation layer and has an internal hot face surrounding a work zone. A sealed housing surrounds the inner insulation layer and is composed of a refractory material capable of withstanding a service temperature greater than a debinding temperature and less than a sintering temperature. An outer heater system is configured to heat at least a portion of the sealed housing and externally heat the inner insulation layer to, in conjunction with an inner heater system, heat the work zone to the debinding temperature, and inhibit condensation of a binder within and upon the inner insulation layer during a debinding process. The inner heater system is configured to internally heat the inner insulation and heat the work zone to the sintering temperature.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: September 26, 2023
    Assignee: Desktop Metal, Inc.
    Inventor: Nathan Woodard
  • Patent number: 11718028
    Abstract: The present invention relates to a stereolithography method, comprising the steps of receiving a light-curing suspension (100) comprising filler particles (103) in a tray (105); adjusting the light-curing suspension by means of a build platform (107) to a layer thickness with respect to a bottom (109) of the tray (105) which is less than the diameter of the filler particles (103); and selectively curing the adjusted layer thickness of the suspension by means of light.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: August 8, 2023
    Assignee: Ivoclar Vivadent AG
    Inventors: Konrad Hagenbuch, Clemens Andreas Häfele, Roger Frei
  • Patent number: 11705778
    Abstract: A power tool is provided with a tool housing, a support plate provided within the tool housing, a rear tool cap mounted on a rear end of the tool housing, and a brushless direct-current (BLDC) motor received within the housing. The motor includes a stator assembly having a stator core and stator windings, a front motor bearing supported by the support plate, a rear motor bearing supported by the rear tool cap, and a rotor including a rotor core and a magnet ring mounted around the rotor core. The rotor core defines an annular recess within which at portion of the front bearing and a portion of the support plate are located such that the a radial plane intersects the front bearing, the magnet ring, and the stator core.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: July 18, 2023
    Assignee: Black & Decker Inc.
    Inventors: David J. Smith, Justin H. Ayers, Abraham Sanchez
  • Patent number: 11696389
    Abstract: The disclosure provides an electronic control apparatus including a printed circuit board with a first surface side and a second surface side and with at least one electronic component that is arranged on at least one of the surface sides of the printed circuit board. At least one heat sink is arranged on the printed circuit board on the opposite surface side from the electronic component for the purpose of heat dissipation. The printed circuit board with the electronic component and the heat sink are surrounded by a casing made from a thermosetting plastic material such that at least one outer side of the heat sink is free of thermosetting plastic material.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: July 4, 2023
    Assignee: Vitesco Technologies Germany GMBH
    Inventors: Martin Steinau, Karl Maron
  • Patent number: 11687038
    Abstract: A watch outer packaging component is a watch outer packaging component formed of austenitized ferritic stainless steel including a base formed of a ferrite phase and a surfacing layer formed of an austenitized phase in which the ferrite phase is austenitized, the watch outer packaging component abutting on a sealing member that partitions between a space inside a watch and a space outside the watch, wherein the surfacing layer includes an outer surfacing layer provided at an outer surface facing the space outside the watch, and an inner surfacing layer provided at an inner surface facing the space inside the watch, and the inner surfacing layer is thinner in thickness than the outer surfacing layer.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: June 27, 2023
    Inventors: Atsushi Kobayashi, Yoshio Mishima
  • Patent number: 11685979
    Abstract: Disclosed is a new diffusion-bonded powder consisting of an iron powder having 1-5%, preferably 1.5-4% and most preferably 1.5-3.5% by weight of copper particles diffusion bonded to the surfaces of the iron powder particles. The new diffusion bonded powder is suitable for producing components having high sintered density and minimum variation in copper content.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 27, 2023
    Assignee: HÖGANÄS AB (PUBL)
    Inventors: Caroline Larsson, Ulf Engström, Christophe Szabo
  • Patent number: 11673330
    Abstract: A metallic build material granule includes a plurality of primary metal particles and a temporary binder agglomerating the plurality of primary metal particles together. The primary metal particles have a primary metal particle size ranging from about the 1 ?m to about 20 ?m. The primary metal particles are non-shape memory metal particles, and the metallic build material granule excludes shape memory metal particles.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 13, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Michael G. Monroe, Johnathon Holroyd
  • Patent number: 11655521
    Abstract: A graphene modifying method of metal having following steps of providing metal powders, graphene powders and a binder, the metal powder has metal particles, and the graphene powder has graphene micro pieces, each graphene micro piece is formed by 6-atom unit cells connected with each other, each 6-atom unit cell is connected to a stearic acid functional group by a sp3 bond; mixing the metal powder, the graphene powder, and the binder to generate heat by a friction, each sp3 bond connected with the stearic acid functional group is thereby heated and broken, each 6-atom unit cell is connected with other 6-atom unit cells via the broken sp3 bond, and the metal particles are thereby wrapped by the 6-atom unit cells; and sintering the metal particles into a metal body to transform the plurality of graphene micro pieces into a three-dimensional mash embedded in the metal body.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 23, 2023
    Assignee: Amazing Cool Technology Corp
    Inventors: Wei-Lin Tseng, Yang-Ming Shih, Chi-Hang Hung
  • Patent number: 11644076
    Abstract: The present invention provides a sintered metal friction material that has excellent wear resistance, heat resistance even at high load and has a higher friction coefficient while maintaining a friction coefficient and wear resistance that are hard to decrease, and has a reduced content of copper of less than 5 mass %. There is provided a sintered metal friction material characterized in that the sintered metal friction material comprises a sintered material of a friction material composition, the friction material composition comprises matrix metals and a friction modifier, the matrix metals comprise following 20 to 40 mass % of iron powder, 20 to 40 mass % of nickel powder, 0.5 to 10 mass % of zinc powder, 0.5 to 5 mass, of tin powder, 0.5 to 4 mass % of copper powder and 0.5 to 5 mass % of sintering assist powder.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: May 9, 2023
    Assignee: TOKAI CARBON CO., LTD.
    Inventors: Makoto Yasuda, Takuya Kinomura
  • Patent number: 11577315
    Abstract: The present application provides a 3D printing method. The present application can provide as a method for efficiently performing 3D printing, for example, a 3D printing method capable of more rapidly and efficiently producing a three-dimensional shape precisely realized up to a fine portion.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: February 14, 2023
    Inventors: Dong Woo Yoo, Jin Kyu Lee
  • Patent number: 11582884
    Abstract: Methods and system are provided for a heat exchanger. In one example, a system, comprises a mobile electronic device comprising a front cover and a rear cover, a heat exchanger arranged between the front cover and the rear cover, the heat exchanger comprising a fluid chamber arranged between an inner surface of a first plate and an inner surface of a second plate, and a wick material arranged within the fluid chamber, the wick material comprising a sintered material configured to allow a plurality of fluid passages to extend therethrough.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: February 14, 2023
    Assignee: Dana Canada Corporation
    Inventor: Doug Vanderwees
  • Patent number: 11554536
    Abstract: A method may include fused filament fabricating a fused filament fabricated component by delivering a softened filament to selected locations at or adjacent to a build surface. The softened filament may include a sacrificial binder and a powder including a shape memory alloy (SMA). The method also may include removing substantially all the sacrificial binder from the fused filament fabricated component to leave an unsintered component; and sintering the unsintered component to join particles of the SMA and form an SMA component.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 17, 2023
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: Quinlan Yee Shuck, Scott Nelson, Raymond Ruiwen Xu, Brandon David Ribic, Matthew R. Gold
  • Patent number: 11534964
    Abstract: Provided is a method which includes a first layer formation step of forming a first layer by using a first composition that contains a constituent material powder, a first powder, and a binder of a three-dimensional shaped article; a second layer formation step of forming a second layer by using a second composition that contains a second powder and a binder; a degreasing step of a stack containing the first layer and the second layer; and a sintering step of the stack, a decomposition point of the first powder is higher than decomposition points of the binder of the first layer and the binder of the second layer, a decomposition point of the second powder is higher than the decomposition point of the first powder, and a sintering temperature of the constituent material powder is higher than the decomposition point of the second powder.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: December 27, 2022
    Inventors: Eiji Okamoto, Akihiko Tsunoya
  • Patent number: 11524457
    Abstract: A fabrication device includes a build surface to receive layers of material for production of a 3-dimensional solid representation of a digital model and an imaging component to bind respective portions of the build material into cross sections representative of portions of data contained in the digital model. The imaging component may be a programmable planar light source utilizing a micropixelation system and refractive pixel shifting mechanism, or other imaging system. The device may include a system for controlling the density of the printed part. The object may be a powder composite component using any of a variety of powder materials or a plastic component. The object may be further post-processed to produce a high precision metal or ceramic component.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: December 13, 2022
    Assignee: TRIO LABS, INC.
    Inventor: Adam T. C. Steege
  • Patent number: 11527944
    Abstract: A method of making a component of an electrical machine is provided. An additive manufacturing process is used to manufacture a part, including applying beams of energy to a successive plurality of ferromagnetic material particles and fusing them together to form a ring or segment of a ring with an axis, a solid portion, and laminas that extend from the solid portion in a radial or axial direction.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: December 13, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Anoop Jassal, Jan Erich Hemmelmann, Mohamed Osama
  • Patent number: 11524337
    Abstract: A powder for additive manufacturing, which is a powder to be used in a three-dimensional additive manufacturing method, including a plurality of coated particles containing metal particles, and resin coating films that cover the metal particles and contain a caking additive, wherein 0.0001?t/D50?0.0010 in which t is an average thickness of the resin coating films and D50 is an average particle diameter of the metal particles.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: December 13, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hidefumi Nakamura, Atsushi Nakamura, Toshiki Sano, Naoko Shima
  • Patent number: 11491542
    Abstract: A system for fabricating an infiltrated downhole tool for introduction into a wellbore includes a mold assembly including a binder bowl, a mold, a preformed blank, and a funnel. The binder bowl has a lower portion and a plurality of apertures extending through the lower portion. The preformed blank is disposed within the infiltration chamber to provide an attachment area for a body of the infiltrated downhole tool, and the funnel is disposed intermediate the binder bowl and the mold. The system further includes a binder flow channel which extends through at least one of the preformed blank, the funnel, or a displacement core disposed within the mold assembly, the blank being concentrically arranged around the displacement core.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 8, 2022
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Yi Pan, Daniel Brendan Voglewede, Grant O. Cook, III, Jeffrey G. Thomas
  • Patent number: 11466169
    Abstract: There is provided a piezoelectric composite comprising a piezoelectric polymer and particles of a filler dispersed in the polymer, wherein the filler is in micro or nanoparticle form and is present in a filler:polymer weight ratio between about 1:99 and about 95:5. There is also provided an ink and ink cartridge for 3D printing of the piezoelectric composite. There is also provided a piezoelectric 3D printed material comprising the piezoelectric composite and a bifunctional material comprising the piezoelectric composite with one or more conductive electrodes adjacent to the piezoelectric composite. Methods of manufacture and uses thereof are also provided, including methods for 3D printing of a piezoelectric 3D printed material via solvent-cast or FDM 3D printing starting from the piezoelectric composite and/or the ink.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 11, 2022
    Inventors: Sampada Bodkhe, Daniel Therriault, Frédérick Gosselin, Tao Rui
  • Patent number: 11447423
    Abstract: The present invention is a method for obtaining a ceramic slurry for the production of filaments for 3D FDM printing, comprising adding a polysaccharide, a glycol or an ethanolamine as a gelling agent to a suspension of ceramic material in order to produce said ceramic slurry. The invention also comprises the green body obtained from said slurry and the ceramic filament extruded from the green body.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: September 20, 2022
    Assignee: UNIVERSIDAD DE CASTILLA LA MANCHA
    Inventors: Jesús Canales Vázquez, Gloria Begoña Sánchez Bravo, Juan Ramón Marín Rueda, Vicente Yagüe Alcaraz, Juan José López López
  • Patent number: 11426798
    Abstract: An additive manufacturing technique may include forming, on a surface of a substrate, a layer of material using an additive manufacturing technique. The material may include a sacrificial binder and a powder comprising an oxide-dispersion strengthened alloy dispersed in the binder. The technique may include forming, on the layer of material, at least one additional layer of material to form an additively manufactured component. The binder may be selectively sacrificed to leave the powder, for example, to form a component including an alloy.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: August 30, 2022
    Assignee: Rolls-Royce Corporation
    Inventor: Quinlan Yee Shuck
  • Patent number: 11426929
    Abstract: Provided is a powder material for producing a three-dimensional object including: a base material; a resin; and resin particles, wherein an amount W (mass %) of carbon remaining in the powder material after heating in a vacuum of 10?2 Pa or lower at 450 degrees C. for 2 hours satisfies the following formula: W (mass %)<0.9/M, where M represents the specific gravity of the base material.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: August 30, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Junjiroh Sogame, Kohsuke Miyazaki, Takumi Yokoyama, Shinichiroh Satoh, Takafumi Sasaki, Osamu Mizuta, Hiroyuki Miyata, Naoki Oya
  • Patent number: 11111563
    Abstract: Composites comprising various fractions of ultra coarse (UC) tungsten carbide (WC) and cast carbide (CC), along with composites comprising fractions of UC-WC and CC having various particle size and showing an improved strength and erosion resistance, and methods for making the inventive composites.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: September 7, 2021
    Assignee: GLOBAL TUNGSTEN & POWDERS CORP.
    Inventors: Ravi K. Enneti, Kevin Prough, Keith Newman
  • Patent number: 10898951
    Abstract: Powder particles for forming a homogeneous green body having a sufficient strength and a process for producing a green body by using the powder particles. A green body is shaped by using powder particles of composite particles in which thermoplastic resin particles are scattered on surfaces of large particles in an amount within a predetermined volume ratio range with respect to the large particles, and loaded to form resin pools in contact point peripheral areas of adjoining ones of the large particles and form voids in areas other than the contact point peripheral areas when the thermoplastic resin particles are melted. A green body packed with the powder particles each having a small amount of the thermoplastic resin particles attached thereon is placed under a melting condition of the thermoplastic resin particles, the thermoplastic resin is melted and gathers around contact points (or proximal points) of the adjoining powder particles.
    Type: Grant
    Filed: December 11, 2016
    Date of Patent: January 26, 2021
    Assignee: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Hiroyuki Muto, Atsunori Matsuda, Go Kawamura, Tatsuya Matsusaki
  • Patent number: 10675682
    Abstract: A compound for metal powder injection molding includes secondary particles in which first metal particles are bound to one another, and a matrix region including a binder and second metal particles composed of the same constituent material as the first metal particles and having a smaller average particle diameter than the first metal particles. The constituent material of the first metal particles is any of an Fe-based alloy, an Ni-based alloy, and a Co-based alloy.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: June 9, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hidefumi Nakamura, Yasutoshi Hideshima
  • Patent number: 10608417
    Abstract: A spark plug having a center conductor, an insulator surrounding the center conductor, at least two electrodes forming a spark gap, and a spark plug body surrounding the insulator and having an external thread arranged at the front end of the spark plug for screwing in to an internal combustion engine. A component that is attached to the front end of the spark plug and comes into contact with fuel during operation is formed as a sintered powder injection molded part, referred to as a metal injection molded (MIM) component.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 31, 2020
    Assignee: FEDERAL-MOGUL IGNITION GMBH
    Inventors: Werner Niessner, Alexander Schenk
  • Patent number: 10583487
    Abstract: A method of producing a finished essentially 100% dense homogenous alloyed metallic product. First, a metal powder is provided comprised of particles with each particle having a predetermined alloy content. Next, the metal powder is blended with a mixture of a lubricant and a binder to form a composite powder. That composite powder is then compacted in a compacting die at room temperature to form a green part. The lubricant and binder are then removed by heating the green part to at least a first temperature profile in a confined atmosphere with a predetermined dew point profile. Next, the remaining green part is heated to a second temperature higher than the first temperature and with predetermined dew point and H2/H2O ratio in a furnace atmosphere to remove surface oxides from the part. Finally, the part is densified into a finished or near net shape homogenous alloyed product.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: March 10, 2020
    Assignee: TAT Technologies LLC
    Inventor: Harbhajan S. Nayar
  • Patent number: 10569332
    Abstract: A moulding tool for powder injection moulding a cemented carbide or cermet component includes a through hole. The moulding tool further includes at least a first and a second tool part arranged to define at least one mould cavity for forming a component. At least one inlet channel introduces moulding material into the mould cavity. The inlet channel extends through the first tool part to the mould cavity, and has an outlet end having an outlet opening for discharging moulding material from the inlet channel into the mould cavity. At least one core forms a through hole in the component, the core having an end and being arranged to extend into the mould cavity along a longitudinal axis (X) in a direction towards the outlet opening of the inlet channel. The end of the core is arranged to close the outlet opening of the inlet channel and the core is arranged movably along the longitudinal axis (X) such that the end of the core may engage with the outlet opening of the inlet channel.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: February 25, 2020
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventor: Carl-Åke Gunnar Jansson
  • Patent number: 10434571
    Abstract: A method for manufacturing a powder injection molding feedstock includes providing a plurality of powder particles and a secondary binder and applying primary kneading in an internal mixer. The primary mixture is cooled and crushed. A main binder is provided and put into the internal mixer to mix with the mixture that being crushed for secondary kneading to obtain the powder injection molding feedstock. Glass-transition temperature of the secondary binder is greater than glass-transition temperature of the main binder. The secondary binder coats the powder particles. The main binder coats the secondary binder and the powder particles.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 8, 2019
    Assignee: CHAMP TECH OPTICAL (FOSHAN) CORPORATION
    Inventors: Dung-Chang Yeh, Lei Yan, Ru-Jie Huang
  • Patent number: 10213834
    Abstract: A method of fabricating an article for magnetic heat exchange, is provided which comprises plastically deforming a composite body comprising a binder having a glass transition temperature TG and a powder comprising a magnetocalorically active phase or elements in amounts suitable to produce a magnetocalorically active phase such that at least one dimension of the composite body' changes in length by at least 10%.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 26, 2019
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Hugo Abdiel Vieyra Villegas, Matthias Katter, Barcza Alexander
  • Patent number: 10072563
    Abstract: An exhaust-gas turbocharger (1) having a turbine (2) which is provided with an adjustable turbine geometry and/or with a wastegate; and having an actuator (11) which is connected by means of a coupling rod (14; 14?; 14?) to the adjustable turbine geometry and/or to the wastegate. The coupling rod (14; 14?; 14?) is connected at its end regions at one side to the actuator (11) and at the other side to an adjusting shaft arrangement of the variable turbine geometry and/or of the wastegate. The coupling rod (14; 14?; 14?) is formed as an MIM component.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 11, 2018
    Assignee: BorgWarner Inc.
    Inventors: Volker Paul, Nico Kanoffsky
  • Patent number: 9844811
    Abstract: Provided is a raw material powder for powder metallurgy, capable of preventing stains, surface defects and decarburization of a sintered body, improving strength and density thereof. The raw material powder for powder metallurgy is for use in the production of a sintered body that is sintered at a temperature of not lower than 500° C., composed of a mixture of a metal powder and a lubricant, in which the lubricant is melamine cyanurate or terephthalic acid. Alternatively, the raw material powder for powder metallurgy is for use in the production of a sintered body that is sintered at a temperature of not lower than 500° C, composed of a mixture of a metal powder, a first lubricant and a second lubricant, in which the first lubricant is melamine cyanurate or terephthalic acid, while the second lubricant is preferably erucic acid amide or stearic acid amide.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: December 19, 2017
    Assignee: DIAMET CORPORATION
    Inventors: Takashi Nakai, Kinya Kawase
  • Patent number: 9713586
    Abstract: An oral care composition comprising a diluted sodium calcium alginate gel, wherein the oral care composition is a toothpaste, a gel, a mouthwash or a mouthrinse.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 25, 2017
    Assignee: Colgate-Palmolive Company
    Inventors: Manying Shi, Xiaojing Lv, Rolando Plata, Zhuoxing Zhang
  • Patent number: 9617394
    Abstract: Particles for forming interconnected or continuous layers of material are, in some embodiments, composed of a Material A, a first central material comprising at least one meltable, softenable, or sinterable substance, and Material B, a second substantially thin material applied to the outer surface of said first material which is thermally or mechanically breachable.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 11, 2017
    Assignee: AeonClad Coatings, LLC
    Inventors: Robert Scott Evans, Daniel John Verdell Pulsipher, John Stockton
  • Patent number: 9475945
    Abstract: An aqueous slurry that is useful upon being spray dried for the formation of a powder of hard material. The aqueous slurry includes starting powder components of the hard material. The slurry further includes an oxidation inhibitor, a surfactant in an amount between about 0.05 weight percent and about 0.30 weight percent of the weight of the starting powder components of the hard material, a binder, a defoamer and water in an between about 15 weight percent and about 30 weight percent of the weight of the weight of the starting powder components of the hard material. The aqueous slurry has a percent solids value that is between about 70 percent and about 85 percent.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: October 25, 2016
    Assignee: KENNAMETAL INC.
    Inventors: Pankaj B. Trivedi, Pankaj K. Mehrotra, Neal S. Myers
  • Patent number: 9469543
    Abstract: Refractory metal and refractory metal carbide nanoparticle mixtures and methods for making the same are provided. The nanoparticle mixtures can be painted onto a surface to be coated and heated at low temperatures to form a gas-tight coating. The low temperature formation of refractory metal and refractory metal carbide coatings allows these coatings to be provided on surfaces that would otherwise be uncoatable or very difficult to coat, whether because they are carbon-based materials (e.g., graphite, carbon/carbon composites) or temperature sensitive materials (e.g., materials that would melt, oxidize, or otherwise not withstand temperatures above 800° C.), or because the high aspect ratio of the surface would prevent other coating methods from being effective (e.g., the inner surfaces of tubes and nozzles). The nanoparticle mixtures can also be disposed in a mold and sintered to form fully dense components.
    Type: Grant
    Filed: May 2, 2014
    Date of Patent: October 18, 2016
    Assignee: Lockheed Martin Corporation
    Inventor: Alfred A. Zinn
  • Patent number: 9336922
    Abstract: A fabrication method of thermoelectric materials using core-shell structured nano-particles and thermoelectric materials fabricated by the same are provided. The method includes preparing core-shell structured nano-particles having thermoelectric elements coated on the surface thereof (step 1); adding and mixing the prepared core-shell structured nano-particles of step 1, bismuth (Bi) salts, tellurium (Te) salts and a surfactant in a solvent (step 2); adding and dispersing a reducing agent in the mixture of step (step 3); and heating the mixture of step 3 in which reducing agent is added and dispersed (step 4). According to the present invention, thermoelectric materials, nano-phase is homogeneously dispersed inside of thermoelectric grain boundary, can be fabricated and if the fabricated materials are used after sintering and bulking, the thermoelectric materials are maintained in a state that the nano-particles remain in dispersed phase even after sintering.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: May 10, 2016
    Assignee: Korea Institute of Machinery and Materials
    Inventors: Kyung Tae Kim, Gook Hyun Ha
  • Patent number: 9308584
    Abstract: Sintered fiber filters are provided that can afford high particle capture efficiency and/or low pressure drop during operation, and are useful in applications such as semiconductor processing. The shape of at least a portion of the individual fibers (e.g., metal fibers) used to make the filter have a three-dimensional aspect, which allows for a low packing density and high porosity filtration media. Certain filters have a cylindrical or tube-like shape with tapered ends of higher density. Methods of making such filters, for example, using axial pressing, are also described.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: April 12, 2016
    Assignee: MOTT CORPORATION
    Inventors: Derek Burgess, Wayne F. White, Alfred M. Romano, Todd W. Pflugbeil, Richard D. Balazy, Kenneth L. Rubow, John E. Rosenberger
  • Patent number: 9289946
    Abstract: Three-dimensional printing system with automated part removal. In one embodiment, the system includes a printing surface on which a part is made and a printing device supported for controlled movement with respect to the printing surface to print the part on the printing surface. A blade is supported for motion across the printing surface to release the part from the printing surface. The present printing system according to the invention requires fewer user steps than known in the prior art.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: March 22, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Alfonso Alexander Perez, Christopher Michael Haid, Forrest W. Pieper, Mateo Pena Doll
  • Patent number: 9054477
    Abstract: Frames for plug connectors capable of being a reduced size may include features to support contacts, house circuitry for coupling with the contacts, facilitate the flow of molten material during the molding of the frame, and allow for ease of insertion and removal of the plug connector to and from a corresponding receptacle connector. For example, a frame may include ledges, interlocks and rounded and tapered openings. Methods for manufacturing the frame are also provided.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 9, 2015
    Assignee: Apple Inc.
    Inventors: Michael Brickner, Wayne Cowan, Brett A. Rosenthal, Richard Heley, Mathias W. Schmidt
  • Publication number: 20150125334
    Abstract: A process and materials are disclosed to enable the formation of metal powder-polymer/plastic preform articles by three dimensional printing a green state article, debinding the polymer/plastic from the metal powder, and sintering the article to a final shape.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: American Hakko Products, Inc.
    Inventors: Takashi Uetani, Chris Stuber
  • Patent number: 8951465
    Abstract: A method for preparing an implant having a porous metal component. A loose powder mixture including a biocompatible metal powder and a spacing agent is prepared and compressed onto a metal base. After being compressed, the spacing agent is removed, thereby forming a compact including a porous metal structure pressed on the metal base. The compact is sintered, forming a subassembly, which is aligned with a metal substrate portion of an implant. A metallurgical bonding process, such as diffusion bonding, is performed at the interface of the subassembly and the metal substrate to form an implant having a porous metal component.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: February 10, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventor: Gautam Gupta
  • Patent number: 8916090
    Abstract: The invention provides an endoscope having a lens holder, wherein the lens holder comprises a body containing a sintered feedstock and machined surfaces. The invention also provides a method of manufacturing the endoscope which comprises the steps of molding a metal blank by a MIM process, wherein the metal blank is “near net shape” and has a sprue, a post, and optionally an outer shell, machining the inner surfaces and then the outer surfaces of the metal blank to form a lens holder, installing a lens in the lens holder, and assembling the lens holder having the lens into the endoscope.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: December 23, 2014
    Assignee: Karl Storz Imaging, Inc.
    Inventor: Kin Ming Kwan